See the images in
message #2 in this thread. The first image is the settings for my Author Sort column. Once you have created it, right click on the Author(s) column and select Author Sort from Show column, then right click again on Author(s) and select Hide Column. Creating the column is done in Preferences => Add your own columns.
I apply this custom column to one library used by my spouse so they can see the LN, FN format. Whereas I prefer the FN LN format so my libraries stick with the default view.